Remove unused import.

src/NeptuneSchema.js

@@ -15,7 +15,7 @@ import { aws4Interceptor } from "aws4-axios";
 import { fromNodeProviderChain  } from "@aws-sdk/credential-providers";
 import { NeptunedataClient, ExecuteOpenCypherQueryCommand } from "@aws-sdk/client-neptunedata";
 import { loggerDebug, loggerError, loggerInfo, yellow } from "./logger.js";
-import { ExecuteQueryCommand, GetGraphSummaryCommand, NeptuneGraphClient } from "@aws-sdk/client-neptune-graph";
+import { ExecuteQueryCommand, NeptuneGraphClient } from "@aws-sdk/client-neptune-graph";
 
 const NEPTUNE_DB = 'neptune-db';
 const NEPTUNE_GRAPH = 'neptune-graph';